505 Performance Turbo System For Jeep 4.0l - graph - Photo 27096667

Once we had the spewage under control, we took the Jeep down to AEM to run it on the dyno. We ran this Jeep on AEM's dyno before, so it only made sense to return there for this round. While we lost the dyno sheet we had, we did find an email laughing at the 83 hp this Jeep put to the rear wheels last time. This time we hit 120hp/161lb-ft at the rear wheels. That puts us at 104hp before and 150hp/201 lb-ft at the crank after installing the turbo, putting us near stock six-cylinder output, assuming a 25-percent correction factor for parasitic drivetrain loss. For comparison, stock-rated power for this Jeep is 120hp/139lb-ft at the crank.